diff --git a/tests/xmltester/XMLTester.cpp b/tests/xmltester/XMLTester.cpp
index dfb1ab17d..5022e1e11 100644
--- a/tests/xmltester/XMLTester.cpp
+++ b/tests/xmltester/XMLTester.cpp
@@ -300,9 +300,6 @@ checkSingleSidedBufferSuccess(geom::Geometry& gRes,
     return success;
 }
 
-const std::string ARG_A = "A";
-const std::string ARG_B = "B";
-
 XMLTester::XMLTester()
     :
     gA(nullptr),